Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Faro | 2019/02/28 10:00 | Giovanni Fonio v Oscar Jose Gutierrez | 4-6,3-6 |
| ITF M25 Porto | 2020/09/29 10:30 | Francesco Forti v Giovanni Fonio | 4-6,0-6 |
| ITF M25 Porto | 2020/09/28 10:30 | Taiyo Yamanaka v Giovanni Fonio | 4-6,7-6,8-10 |
| ITF M25 Porto | 2020/09/27 12:30 | Filipe Brandao v Giovanni Fonio | 3-6,4-6 |
| ITF M25 Klosters | 2020/09/17 10:40 | Corentin Denolly v Giovanni Fonio | 7-6,6-7,6-2 |
| ITF M25 Klosters | 2020/09/16 07:00 | Jeffrey Von Der Schulenburg v Giovanni Fonio | 3-6,0-6 |
| ITF M15 Caslano | 2020/09/01 07:55 | Giovanni Fonio v Gonzalo Lama | 6-2,2-6,6-10 |
| ITF M15 Caslano | 2020/08/31 12:40 | Giovanni Fonio v Mattia Bellucci | 4-6,6-1,10-4 |
| Italian National Tour | 2020/06/30 10:45 | Luca Vanni v Giovanni Fonio | 6-4,6-4 |
| Challenger Forli | 2020/09/19 11:30 | Oscar Jose Gutierrez v Mohamed Aziz Dougaz | 3-6,7-5,2-6 |
| ITF M25 Plaisir | 2020/09/15 08:30 | Oscar Jose Gutierrez v Valentin Royer | 4-6,1-6 |
| Challenger Monterrey | 2020/03/02 18:40 | Oscar Jose Gutierrez v Collin Altamirano | 3-6,4-6 |
| Challenger Morelos | 2020/02/19 02:55 | Oscar Jose Gutierrez v Thomaz Bellucci | 6-4,3-6,2-6 |
| ITF M25 Lima | 2020/02/11 16:30 | Oscar Jose Gutierrez v Nicolas Alberto Arreche | 6-7,6-3,3-6 |
| ITF M25 Lima | 2020/02/04 14:50 | Oscar Jose Gutierrez v Matias Zukas | 6-7,3-6 |
| Challenger Punta del Este | 2020/01/27 17:45 | Oscar Jose Gutierrez v Mariano Kestelboim | 4-6,6-3,5-7 |
| Challenger Montevideo | 2019/11/05 16:15 | Genaro Alberto Olivieri v Oscar Jose Gutierrez | 5-7,6-3,6-4 |